Instructions
Navigate to the LEGO homepage on your Internet browser.
Click "Building Instructions" under the "Customer Service" menu, located at the bottom left corner of the LEGO homepage.
Type "Atlantis" in the "Search by Keyword" field.
Click the Atlantis set you need the instructions for. For example, if you need the instructions to the Atlantis HQ, click "Lego Atlantis HQ" in the "Select a Building Instruction" box at the bottom of the screen.
Click "Download" in the box that appears at the bottom of the screen underneath the "Select a Building Instruction" box. Save the file to an easy-to-remember location, such as your computer's desktop.
Double-click the downloaded file to open the document. The document is a reprinting of the instructions that originally appearing in the product box.
Use the instructions to build the Atlantis set. The instructions are labeled in numerical order, starting with one, and must be followed in that order to complete the set.